Data sources and licenses
wordhippo.cc is built entirely on open lexical data. This page credits every source and states what we use it for, as their licenses require and as good manners demand.
Open English WordNet 2024
License: Creative Commons Attribution 4.0 (CC BY 4.0)
Sense-grouped synonyms, antonyms, definitions, related words and usage examples on word pages.
Derived from Princeton WordNet, maintained by the Global WordNet Association community.
Wiktionary (via Wiktextract / kaikki.org)
License: Creative Commons Attribution-ShareAlike 4.0 (CC BY-SA 4.0)
Word forms (plurals, tenses, comparatives), IPA pronunciations and supplementary synonyms, marked on-page where used.
Our database of Wiktionary-derived fields is itself available under CC BY-SA 4.0. Sections built from this data are labelled on each page.
CMU Pronouncing Dictionary
License: BSD 2-clause
Pronunciations, syllable counts, and every rhyme list on the site (computed from its phoneme data).
Copyright (C) 1993-2015 Carnegie Mellon University. All rights reserved.
Tatoeba
License: Creative Commons Attribution 2.0 France (CC BY 2.0 FR)
Example sentences. Each sentence links to its Tatoeba page and credits its author.
Sentences are user-contributed; we filter for quality and length.
ENABLE word list
License: Public domain
The dictionary behind every solver tool and word list page (172,823 words).
Enhanced North American Benchmark Lexicon, released to the public domain by its creators.
LemmInflect
License: MIT
Cross-checking and filling gaps in word-form tables at build time.
wordfreq
License: Data: CC BY-SA 4.0; code: MIT/Apache
Word frequency ranking: which words get pages, and the ordering of rhymes and lists.
Share-alike notice
Word-form tables, IPA transcriptions and supplementary synonym lists derived from Wiktionary are available underCC BY-SA 4.0. If you reuse those parts of our pages, the same license applies to your copy.
Trademarks
SCRABBLE is a trademark of Hasbro, Inc. in the USA and Canada and of Mattel elsewhere. Words With Friends is a trademark of Zynga Inc. Wordle is a trademark of The New York Times Company. wordhippo.cc is independent of and not affiliated with any of them; our tools describe game styles functionally and use only public-domain word lists.